Hinge for doors



Jan. 8, 1935. D Q LEONARD 1,987,512

' HINGE FOR DOORS Filed April 5, 1932 3 Sheets-Sheet 2 z//// \fi :6. fl\ gj g \f t i k a 19 19 U o A 20 3 bwfiizihw J Mm:

(Ittomeg Jan. 8, 1935.

D. E. LEONARD .HINGE FOR DOORS 3 Sheets-Sheet 5 Filed April 5, 1.932

VZiMMinnentor (Ittomeg S provements in mounting which may Patented Jan. 8, 1935 PATENT OFFICE HINGE FOR DOORS David Charles Elwyn assignor to Jamison pany, Hagerstown,

' Maryland Application April 5, 1932, serial No. 603,296

Leonard, Hagerstown, Md.,

Cold Storage Door om- Md., a .corporation of 7 Claims. (Cl. 16-163) The invention relates to new and useful ima door mounting, and more particularlyto a door mounting which permits the door to swing freely and to make a tight sealing contact with the door frame all the way around the door opening.

An object of the invention is to provide a door be attached to the door at the edge thereof and to the adjacent door frame, which mounting includes means permitting the door to swing freely to open and closed position, and means for yieldingly forcing the door edge adjacent the mounting into contact with the door frame.

A further object of the invention is to provide a door mounting of the above type which includes means for varying the yielding pressure 'of the edge of the door adjacent the mounting against the frame.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

In the drawings-- Figure 1 is a horizontal sectional view through the door, the door frame and one of the door mountings;

Fig. 2 is an enlarged horizontalsectionalview through the door, the door frame and the door mounting;

Fig. 3 is a view similar to Fig. 2, but showing a slightly modified form of door mounting for a door which overlies the door frame instead of extending into the openingformed by the door frame as in Figures 1 and 2;

Fig. 4 is an enlarged horizontal sectional view through the central portion of one of the door mounting Fig. 5 is a view showing the door mounting of Figures 3 and 4 as viewed from the side edge of the door;

Fig. 8 is a horizontal sectional view showing the door supporting means in a modified form of door mounting, and

Fig. 'i is a horizontal sectional view showing the spring means used in the modified form of door mounting with the supporting means shown in Fig. 6.

The invention is shown as applied to a door mounting for a door which is particularly adapted for closing an opening to a chamber which it is desired to maintain at a temperature differing from normal atmospheric temperature, such as, for example, a cold storage chamber, a heated chamber or a chamber to hold moderate pressure. The door is of the usual construction and is provided with sealing strips which make engagement with the door frame for establishing a tight seal. The invention has to do particularly with the mountings for the door. The door moiihtings include a door supporting means and a'spring 5 means which is associated therewith for forcing the edge of the door adjacent the mounting "into tight sealing contact with the door frameg. In one form of the invention, the door supporting means and the spring means are all intercom .10 nected in a single mounting or series of mountings, while in another form of the invention, the door supporting 'means and the spring means are in separate units. In each instance, the door is mounted to swing about an axis at one side of 15,-- the opening, and the spring means includes an abutment member which is connected to the door and which swings with the door and about the door swinging axis. A spring is interposed between this abutment member and the door, and is so arranged as to exert an abutment pressure against the 'edge of the door in a direction laterally of the door. The abutment member is so connected to the door that the springthrough said abutment member exerts a; yielding force in a direction at right angles to the door, and thus forces-the edge of the door adjacent the mounting into ,contact with the door frame when the door is closed.

Referring more in detail to the drawings, the invention as shown in Figures 1 and 2 is applied to the door which swings in part into the opening formed by the' door frame. The door is indicated at 1 and the door frame at 2.. The walls of the chamber are of insulating material as indicated at 3. This insulating material may be cork or any other suitable material of low conductivity. The door is made very thick, and is likewise provided with a suitable insulation as indicated at 4.. The door makes contact with the frame along 40 the lines 5 and 6. There is a sealing gasket 7 between the door flange and the frame along the I line 5 and a sealing gasket which is carried by the door and contacts with the frame along the line 6. Of course, the gaskets may be placed otherwise, instead of on the door. The door, as shown in Figures 1 and 2, is carried by a hinge mounting which includes the supporting means for the door and a spring means operating to press the edge of the door adjacent the mounting into contact with the door frame when the door is closed. There is a mounting 9 which is secured to the door by suitable screws 10, 10, and a mounting 11 which is secured to the door frame by suitable screws 12, 12. A link 13 is secured to the mounting 9 by a pivot bolt 14. The link is also secured to the mounting 11 by a pivot bolt 15. The link 13 is provided with an arm 16 swinging of the door. This construction of abutries a gasket 20 which makes contact with the door frame. Attached to the side edge of the door 18 a door mounting 21 which is similar to the door bolt 26 which passes through openings in the lugs 22, 22. This link 25 is also mounted for swinging movement on a pivot bolt 27 which passes through openings in the arms 28, 28 of the door The mounting in rear of the boss has an enlarged recess receiving the head 32 of the bolt. This forms a substantially rigid support for the bolt. The bolt extends through'an opening 33 in the arm 28", which end exerts a pressure against the bell crank abutlment member tending to turn the same about the pivot bolt 27. When the door is away from the gasket, the movement of the bell crank abutment member is limited by the nuts 36 and 37 which bear against a washer 35. This will hold the bell crank abutment member in a predetermined position relative to the dooriduring the swinging operate to hold the door plane of the door. Thus the edge of the door 'adjacent the mounting is held in tight contact with door, the edge thereof adjacent the mountings should strike against an obstruction, the spring will yield, allowing the edge of the door to stop movement out of contact with the frame, and thus the parts of the mount- It will be understood, of course, that for tomatically secured in closed position. The latch mechanism, however, may be greatly varied as to structure, and any form may be used which will in closed position.

In Figures 6 and 7 of the drawings, a. mounting is provided for a door wherein the door is supported independently of the spring means which the pivotal supporting means for the door. The door swings about this bolt 45 as an axis, and is free to move bodily toward and from the door frame when in closed position. There will be a series of mountings similar to that just described for supporting the door. The spring means which functions precisely as the spring means described above, is separate from this support for the door, but constitutes a part or the door mounting as a whole. The spring means includes a bracket member 46 which is secured to the door frame by suitable bolts so that it is rigidly attached thereto. Rigidly attached to the side edge wall crank abutment member is provided with an arm 54 which is adapted to engage the lug 49 when the door is open. The bolt 48 carries nuts 55, 56 which are preferably set so that they are out of contact with the bell crank abutment member. in this form of the invention. The spring is urging the arm 54 into contact with the lug 49 when the door swings to closed position. When the inner edge-portion of the door or the-gasket carried thereby contacts with the door frame, the remaining portion of the door has not yet made contact with the frame, and when the door is forced to closed position, this inner edge portion of the door adjacent the mounting will be firmly pressed into contact with the door frame and the spring 53 will be compressed. This is brought about by reason of the fact that the pivot bolt 50 is further away from the door frame than the point where the door contacts with the door frame, and therefore, the point of contact of the door is moving toward a; line cuttingth'e door frame plane at right angles and passing through the pivot bolt 50. The spring 53 is compressed and bearing on the bell crankabutment member produces a force on the arm 54 against the 111% 49 in a direction at right angles to the plane of the door and toward the door frame. as the pivot slot in this allows the door to move into very tight sealing contact with the door frame. It is, however, the yielding contact brought about by the spring 53. Again, if in closing the door, it strikes an obstruction, the spring will yield and allow the door to swing to the extent of movement permitted by the elongated slot in the mounting 43.

Instead of two separate mountings, one for supporting the door and one which includes the spring means for yieldingly holding the door against its seat, these parts may be built into the same unit and still be separate in their action. Or, as shown in Figures 1 to 5. they may not only be built into the same unit, but function together in the supporting of thedoor and yieldingly pressing the door against. the door frame. It will be understood, therefore, that the invention is directed broadly to any means of mounting the door so that it has the capability of bodily shift in a direction at right angles to the plane of the door adjacent the swinging axis of the door, and in spring means whereby a spring having the edge of the door as an abutment operates through a bell crank abutment lever for exerting a pressure onthe door in a direction at right angles to the plane of the door along the edge portion of the door adjacent the mounting. While I have shown a one-piece bell crank abutment member, it will be understood that this may be otherwise shaped, as again the essential feature resides in the transferring of the pressure of the spring which is laterally or in the plane of the door to a direction against the door at right angles thereto. Instead of using a comlpression spring, the arm of the bell crank abutiment member may be extended upwardly and a tension spring used.

It is obvious that many changes may be made in the details of construction and the arrangement of the mountings for the door without departing from the spirit of the invention as set forth in the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters-Patent-,;is-

1. A hinge for doors for closing and sealing an opening'through a door frame including a member' adapted to be Inasmuch. the mounting 43 is elongated,

attached to the door, a

member adapted to be attached to the door frame, a link pivotally connecting said members and adapted to support the door, said link having an arm extending at right angles thereto, a spring interposed between the member adapted to be attached to the door and said arm, and means for limiting the swinging movement of said arm whereby the link is held in a predetermined position relative to the door supported thereby during the swinging movement of the door, said spring operating through said link for exerting a force on the door at right angles to the door.

2. A hinge for doors for closing and sealing an opening through a door frame including a member adapted to be attached to thedoor, a member adapted to be attached to the door frame, a link pivotally" connectingsaid members and adapted to support the door, said link having an arm extending at right angles thereto, a spring interposed between the member adapted to be attached to the door and said a a bolt rigidly connected to the member adapt d to be attached to the door and extending through a slot in said arm, and nuts threaded on said bolt and adapted to contact with the outer face of'said arm and limit the swinging movement of the arm so that said link will be held in a predetermined position relative to the door to which it is attached during the swinging movement of the door, said spring operating through said link to exert a force on the door at right angles to the door.

3. A hinge for doors for cold storage chambers comprising means for swingingly supporting a door so that the edge portion thereofadjacent the hinge may have a limited bodily movement in a direction at right angles to the plane of the door, said supporting means including an abutment member moving with the door about the swinging axis thereof and having a limited movement independent of the door, a spring interposed between the door and the abutment member and operating to exert a yielding force on the door adjacent the hinge and at right angles to the plane of the door when said door is closed.

4. A hinge for doors for cold storage chambers comprising means for swingingly supporting the door so that the edge portion thereof adjacent the hinge may have a limited bodily movement in a direction at right angles to the plane of the door, spring means including a bell crank member connected to the door and moving therewith about the swinging axis of the door, and a spring interposed between one arm of the bell crank member and operating through said bell crank member to exert a force on the door adjacent the hinge and at right angles to the door.

5. A hinge for doors for cold storage chambers comprising means for swingingly support-115a,, a door so that the edge portion thereof adjacent:

the hinge may have a limited bodily movement in a direction at right angles to the plane of the door, said supporting means including an abutment member moving with the door about the swinging axis thereof, a spring interposed between the door and the abutment member and operating to exert a the hinge and at right the door when said door is closed, and means for limiting the" movement, of the abutment member relative-to the door whereby said abutment member is yieldingly held in a predetermined position relative to the door during the swinging movement thereof.

6. A hinge for doors for ,cold storage chambers comprising meanstjforswingingly supporting a yielding force on the door adjacent anglesg to the plane of...

door so that the edge portion thereof adjacent the hinge may have a limited bodily movement in a direction at right angles to the plane of the door, said supporting means including an abut- 5 ment member moving with the door about the swinging axis the reof, a spring interposed between the door and the abutment member and operating to exert a yieldin g force on the door adjacent the hinge and at right angles to the plane of the 10 door when said door is closed, means for limiting the movement of the abutment member whereby said abutment member is yieldingly held in a predetermined position relative to the door during the swinging movement thereof, and means 15 whereby the limiting movement may be adjusted for shifting the ber.

position of the abutment mem- 7. A hinge for doors for cold storage chambers comprising means for swingingly supporting a door so that the edge portion thereof adjacent the hinge may have a limited bodily movement in a direction at right angles to the plane or the door, spring means including a bell crank member connected to the door and moving therewith about the swinging axis of the door, a spring interposed between one arm of the bell crank member and operating through said bell crank member to exert a force on the door adjacent the hinge and at right angles to the door, and means for limiting the movement 01' the bell crank member whereby said bell crank member is yieldingly held in a predetermined position relative to the door during the swinging movement thereof.

DAVID CHARLES ELWYN LEONARD. 

